pet_mall_layers

flowchart TD
     标题
    title[宠物商城推荐系统架构图]
    class title title-style

     接入层
    subgraph Layer2[接入层]
        direction LR
        Gateway[推荐网关] --- Router[场景路由]
    end

     存储层
    subgraph Layer4[存储层]
        direction LR
        Risk[(风控数据)] --- 
        Search[(搜索数据)] --- 
        Marketing[(营销数据)] ---
        Feature[(特征数据)]
        class Risk,Search,Marketing,Feature storage
    end

     层级连接
    Layer1 --> Layer2
    Layer2 --> Layer3
    Layer3 --> Layer4
    Layer5 -.- Layer3
    Layer5 -.- Layer4

    %% 设置子图样式
    style Layer1 fill:#fff,stroke:#333,stroke-width:2px
    style Layer2 fill:#fff,stroke:#333,stroke-width:2px
    style Layer3 fill:#fff,stroke:#333,stroke-width:2px
    style Layer4 fill:#fff,stroke:#333,stroke-width:2px
    style Layer5 fill:#fff,stroke:#333,stroke-width:2px